A centrifugal impeller structure type-based active heat dissipation permanent magnet submersible motor rotor

Abstract

The utility model relates to a kind of active heat dissipation permanent magnet submersible motor rotor based on centrifugal impeller structure type belongs to well submersible motor technical field.The utility model discloses rotor shaft, rotor core, water inlet straight hole end ring, rotor fixed ring, torus permanent magnet, water outlet curved hole end ring and rotor key;Rotor core and rotor fixed ring are fixedly installed on rotor shaft by rotor key;Water inlet straight hole end ring and water outlet curved hole end ring are fixedly connected on the axial both sides of rotor fixed ring by screw respectively;Torus permanent magnet is arranged in the inside of rotor core, and rectangular slot is formed in torus permanent magnet, and it is fixed with rotor core by the rectangular slot, water inlet straight hole end ring, torus permanent magnet and water outlet curved hole end ring have communicating channel, and constitute the cooling water circulation passway of through rotor.The utility model can effectively reduce permanent magnet temperature, prevent demagnetization, improve motor operation reliability.

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